Materials / Adhesives / Coatings

Subscribe to this RSS Feed

DYMAX (Torrington, CT) offers DYMAX MD® 1200 series adhesives for rapid bonding of a variety of substrates found in medical devices. These adhesives are bright blue in their uncured state, making them easy to see on a variety of substrates, in deep wells, or when sandwiched between two layers of materials. The blue color allows automated vision systems to confirm adhesive placement prior to curing, for greater efficiency and less scrap. During the light-curing process, the blue color transitions to clear to indicate that the full cure has been achieved. The visual cure-indicator may be used to qualify the process and to ensure that the process remains within established control parameters. It is solvent-free and cures in seconds when exposed to high-intensity UV/visible light. It is compatible with gamma, EtO, and e-beam sterilization.
Read More >>

Minnesota Rubber & Plastics (Minneapolis, MN) offers F-treated FKM elastomers for custom-designed seals located in medical devices such as endoscopes. The F-treat process provides a low coefficient of friction surface that will not dissipate with wear. The treatment provides surgeons with more sensitivity and “feel” for their instruments than non-treated elastomer seals. Unlike topical modifications, F-treat is a modification of the entire compound so that even if abrasion or wear occurs, a modified low friction surface will always be present.
Read More >>

NuSil Technology (Carpinteria, CA) has introduced two transdermal adhesives. The DDR-1370 is a one-part, non-curing, traditional pressure sensitive adhesive (PSA) dispersed in ethyl acetate. It has a typical viscosity of 1,450 cP, and once coated onto a substrate, can be die cut into various shapes. It offers high cohesive strength and high release force, resulting in favorable temporary adhesive properties. DDR-4355 is a transparent, silicone tacky gel with a typical viscosity of about 15,000 cP. It cures at low temperatures to a soft, high-surface-tack, temporary silicone adhesive. Both the PSA and gel can be applied using coating processes, but represent two different options when selecting a temporary, transdermal adhesive.
Read More >>

Bayer MaterialScience (Pittsburgh, PA) offers Baymedix™ CL 100, a lubricious surface treatment for medical devices that gives a durable coating. The coating has demonstrated low coefficients of wet friction, 0.02-0.03, on prototype devices. Directly grafting the treatment onto the surface of the medical device achieves a thin coating of no more than a few microns. It may also be applied to the lumens, or interiors, of catheters, for when one catheter or device needs to be passed through another.
Read More >>

A compound found in sunless tanning spray may help to heal wounds following surgery, according to research by biomedical engineers at Cornell University.
Read More >>

Langley Research Center’s Soluble Imide (LaRC-SI) was discovered by accident. While researching resins and adhesives for advanced composites for high-speed aircraft, Robert Bryant, a Langley engineer, noticed that one of the polymers he was working with did not behave as predicted. After putting the compound through a two-stage controlled chemical reaction, expecting it to precipitate as a powder after the second stage, he was surprised to see that the compound remained soluble. This novel characteristic ended up making this polymer a very significant finding, eventually leading Bryant and his team to win several NASA technology awards, and an “R&D 100” award.
Read More >>

This material exhibits an osteogenesis-promoting effect without toxicity, making it suitable as a surgical implant.

A ceramic body consisting of the phases of tricalcium phosphate and/or hydroxyapatite provides biocompatibility with hard tissues. When such a ceramic body is implanted in a bone, direct connection is formed between the bone and the ceramic body without intervention of any fibrous connective tissues. This zinc-containing or zinc-doped ceramic material mainly consists of tricalcium phosphate and is suitable as a ceramic material for biomedical use. In particular, the material provides surgical implant materials for hard tissue consisting of zinc-doped tricalcium phosphate to promote bone formation by releasing zinc in the body.

Read More >>